Hillside lttgk



T. H. JACOB,

HILLSIDE LUG. 7 APPLICATION man Nov 17, 1921.

Patented Mar. 21, 1922.

UNITED STATES THOMAS H. JACOB, 0F WAUSAU, WISCONSIN.

HILLSIDE LUG.

Application filed November 17, 1921.

To all whom it may concern Be it known that I, THOMAS H. JACOB, acitizen of the United States, and resident of Wausau, in the county ofMarathon and State of Wisconsin, have invented certain new and usefulImprovements in Hillside Lugs; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

My invention is a device for increasing the traction or gripping actionof the wheel of a tractor, designed especially to prevent the tractorfrom slipping on side hills.

I attach a lug to the angle-irons positioned on the rim of a tractorwheel, the lugs being U shaped and made of angle-iron.

The flange of the angle-iron will prevent the wheel and the lug fromsinking to an undesirable degree into loose soil and will pack the earthin such wise as to cause the lug to get a better grip. The filler ofground, as it were, which is in the loop of the lug, is not disturbedand remains a permanent anchor. Where ground is pressed upon immediatelyby the wheel, the pressure and the prying action of the lug on the earthdisturbs it so that it does not produce the desired traction.

My lug projects over the wheel and surrounds the filler or portion ofground.

It is old to provide lugs projecting straight out for several inches,but the effect of these is to break up the ground, whereas mine leavesthe filler or block of dirt, which is inside of the loop, entirelyunbroken and thereby produces a maximum of traction.

My lug also is especially strong in structure and easily manufactured.

Other objects and advantages will appear as the description proceeds.

Reference is had to the accompanying drawings, in which- Figure 1 is aplan view of the wheel.

Figure 2 is a plan of the lug.

Figure 3 is a side elevation thereof, and

Figure 4: is a cross section on the line H of Figure 2.

On wheel 10 are positioned angle-irons 11. My lug is provided with aflange 12 out- Specification of Letters Patent.

Patented Mar. 21, 1922.

Serial No. 515,755.

wardly extending from an upstanding member 13, which is provided withapertures 14: through which bolts 15 are run to secure the lug to one ofthe angle-irons 11. The other arm of the lug is provided with anaperture 16 through which a bolt 17 is run aflixing this end of the lugto the next succeeding angle-iron 11. Flange 12 extends forwardly so asto form a projection 18 which fits in closely against the rim, as shownin Figure 1.

In the operation of the device the lug exercises a gripping action uponthe earth. Flange 12 packs the soil, enabling member 18 to get a bettergrip. A certain amount of earth is enveloped by the lug and remains inan unbroken condition, thus giving an anchoring effect and increasingthe traction. The shape of the lug is such that it operates to retain,as said, a portion of the earth. There is no break in the lug whichpermits the earth to travel laterally and escape, thus decreasing thetraction.

I claim:

1. In a tractor wheel, a rim, teeth on said rim and a lug extendingoutwardly from one of said teeth and inwardly to another of said teeth.

2. In a tractor wheel, a rim, angle-irons on said rim, and a lugsubstantially L shaped in cross section aflixed to one of saidangleirons and extending outwardly therefrom and inwardly directed andaflixed to the next succeeding angle-iron.

3. In a tractor wheel, a rim, angle-irons secured to said rim andinclined to the sides of said rim, a U shaped lug substantially L shapedin cross section secured to one of said angle-irons, a flange on saidlug having its inner face contacting throughout a portion of its lengthwith said rim, a projection on said flange abutting against the sideedge of said rim and means for securing the other end of said lug to thenext succeeding angleiron.

In testimony that I claim the foregoing I have'hereunto set my hand atWausau, in the county of Marathon and State of Wisconsin.

THOMAS H. JACOB.

